Balance wheel with flat hairspring



FIG. 1 is a top view of the balance wheel with flat hairspring.

FIG. 2 is a bottom view of the balance wheel with flat hairspring.

FIG. 3 is a side view from the bottom of FIG. 1.

FIG. 4 is a side view from the top of FIG. 1.

FIG. 5 is a side view from the right of FIG. 1.

FIG. 6 is a side view from the left of FIG. 1; and,

FIG. 7 is a perspective view of the balance wheel with flat hairspring.

The ornemental design for a balance wheel with flat hairspring, as shownand described.